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| All Patents in class 280/492 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 611,635 | Oct. 04, 1898 | W.S. Kelley | Traction Engine Tender | ||
| 1,559,541 | Nov. 03, 1925 | W.I. Ballentine | Trailer for Tractors | ||